Как обработать callback уведомления от чера php

Как обработать callback уведомления от чера php

I want to get callback data from response but array is empty.

I am trying to show in message callback_data array.

Here is my code:

1 Answer 1

There are some small mistakes in the code, I’ll try to address them; Using php://input is only possible with webhooks, did you tell Telegram the location of your script?

Is only set if a button is pressed, this should be called after the check if there is some callback data

How do I implement a callback in PHP?

The manual uses the terms «callback» and «callable» interchangeably, however, «callback» traditionally refers to a string or array value that acts like a function pointer, referencing a function or class method for future invocation. This has allowed some elements of functional programming since PHP 4. The flavors are:

This is a safe way to use callable values in general:

Modern PHP versions allow the first three formats above to be invoked directly as $cb() . call_user_func and call_user_func_array support all the above.

Как обработать callback уведомления от чера php

switch( $notification_code ) case STREAM_NOTIFY_RESOLVE :
case STREAM_NOTIFY_AUTH_REQUIRED :
case STREAM_NOTIFY_COMPLETED :
case STREAM_NOTIFY_FAILURE :
case STREAM_NOTIFY_AUTH_RESULT :
var_dump ( $notification_code , $severity , $message , $message_code , $bytes_transferred , $bytes_max );
/* Игнорируем */
break;

$ctx = stream_context_create ();
stream_context_set_params ( $ctx , array( «notification» => «stream_notification_callback» ));

file_get_contents ( «http://php.net/contact» , false , $ctx );
?>

function stream_notification_callback ( $notification_code , $severity , $message , $message_code , $bytes_transferred , $bytes_max ) static $filesize = null ;

switch( $notification_code ) case STREAM_NOTIFY_RESOLVE :
case STREAM_NOTIFY_AUTH_REQUIRED :
case STREAM_NOTIFY_COMPLETED :
case STREAM_NOTIFY_FAILURE :
case STREAM_NOTIFY_AUTH_RESULT :
/* Игнорируем */
break;

isset( $argv [ 1 ], $argv [ 2 ]) or usage ( $argv );

$ctx = stream_context_create ();
stream_context_set_params ( $ctx , array( «notification» => «stream_notification_callback» ));

Обработка callback от Cбера как дополнительный инструмент подтверждения оплаты

Как обработать callback уведомления от чера php

class B extends A public static function who () echo «B\n» ;
>
>

User Contributed Notes 18 notes

You can also use the $this variable to specify a callback:

<?php
class MyClass

public $property = ‘Hello World!’ ;

public function MyMethod ()
call_user_func (array( $this , ‘myCallbackMethod’ ));
>

public function MyCallbackMethod ()
echo $this -> property ;
>

When specifying a call back in array notation (ie. array($this, «myfunc») ) the method can be private if called from inside the class, but if you call it from outside you’ll get a warning:

class mc public function go (array $arr ) array_walk ( $arr , array( $this , «walkIt» ));
>

private function walkIt ( $val ) echo $val . «<br />» ;
>

public function export () return array( $this , ‘walkIt’ );
>
>

$data = array( 1 , 2 , 3 , 4 );

$m = new mc ;
$m -> go ( $data ); // valid

array_walk ( $data , $m -> export ()); // will generate warning

Output:
1<br />2<br />3<br />4<br />
Warning: array_walk() expects parameter 2 to be a valid callback, cannot access private method mc::walkIt() in /in/tfh7f on line 22

A note on differences when calling callbacks as «variable functions» without the use of call_user_func() (e.g. » <?php $callback = ‘printf’ ; $callback ( ‘Hello World!’ ) ?> «):

— Using the name of a function as string has worked since at least 4.3.0
— Calling anonymous functions and invokable objects has worked since 5.3.0
— Using the array structure [$object, ‘method’] has worked since 5.4.0

Note, however, that the following are not supported when calling callbacks as variable functions, even though they are supported by call_user_func():

— Calling static class methods via strings such as ‘foo::doStuff’
— Calling parent method using the [$object, ‘parent::method’] array structure

All of these cases are correctly recognized as callbacks by the ‘callable’ type hint, however. Thus, the following code will produce an error «Fatal error: Call to undefined function foo::doStuff() in /tmp/code.php on line 4»:

<?php
class foo static function callIt (callable $callback ) $callback ();
>

static function doStuff () echo «Hello World!» ;
>
>

The code would work fine, if we replaced the ‘$callback()’ with ‘call_user_func($callback)’ or if we used the array [‘foo’, ‘doStuff’] as the callback instead.

You can use ‘self::methodName’ as a callable, but this is dangerous. Consider this example:

<?php
class Foo public static function doAwesomeThings () FunctionCaller :: callIt ( ‘self::someAwesomeMethod’ );
>

public static function someAwesomeMethod () // fantastic code goes here.
>
>

class FunctionCaller public static function callIt (callable $func ) call_user_func ( $func );
>
>

This results in an error:
Warning: class ‘FunctionCaller’ does not have a method ‘someAwesomeMethod’.

For this reason you should always use the full class name:
<?php
FunctionCaller :: callIt ( ‘Foo::someAwesomeMethod’ );
?>

I believe this is because there is no way for FunctionCaller to know that the string ‘self’ at one point referred to to `Foo`.

If you pass a callable method to a function with a callable type declaration, the error message is misleading:

<?php
class X protected function foo (): void
>

function bar (callable $c )

Error message will be something like «Argument #1 ($c) must be of type callable, array given» while the actual problem here is only the visibility of method «foo». All you need to do is changing it to public (or use a different approach, e.g. with a Closure).

> As of PHP 5.2.3, it is also possible to pass ‘ClassName::methodName’

You can also use ‘self::methodName’. This works in PHP 5.2.12 for me.

I needed a function that would determine the type of callable being passed, and, eventually,
normalized it to some extent. Here’s what I came up with:

i’ , $callable , $m )) list( $left , $right ) = [ $m [ ‘class’ ], $m [ ‘method’ ]];
if (! $strict || (new \ ReflectionMethod ( $left , $right ))-> isStatic ()) $norm = [ $left , $right ];
return ‘static’ ;
>
> else $norm = $callable ;
return ‘function’ ;
>
break;
case is_array ( $callable ):
$m = null ;
if ( preg_match ( ‘

i’ , $callable [ 1 ], $m )) if ( is_string ( $callable [ 0 ])) if ( ‘parent’ === strtolower ( $m [ ‘reference’ ])) list( $left , $right ) = [ get_parent_class ( $callable [ 0 ]), $m [ ‘method’ ]];
> else list( $left , $right ) = [ $callable [ 0 ], $m [ ‘method’ ]];
>
if (! $strict || (new \ ReflectionMethod ( $left , $right ))-> isStatic ()) $norm = [ $left , $right ];
return ‘static’ ;
>
> else if ( ‘self’ === strtolower ( $m [ ‘reference’ ])) list( $left , $right ) = [ $callable [ 0 ], $m [ ‘method’ ]];
> else list( $left , $right ) = $callable ;
>
if (! $strict || !(new \ ReflectionMethod ( $left , $right ))-> isStatic ()) $norm = [ $left , $right ];
return ‘object’ ;
>
>
>
break;
>
$norm = $callable ;
return ‘unknown’ ;
>
$norm = null ;
return false ;
>

Как обработать callback уведомления от чера php

Callback-функции могут быть обозначены объявлением типа callable .

Некоторые функции, такие как call_user_func() или usort() , принимают определённые пользователем callback-функции в качестве параметра. Callback-функции могут быть как простыми функциями, так и методами объектов, включая статические методы классов.

Передача

В PHP функции передаются по имени в виде строки. Можно использовать любые встроенные, либо созданные пользователем функции, за исключением конструкций языка, таких как: array() , echo , empty() , eval() , exit() , isset() , list() , print или unset() .

Метод созданного объекта ( object ) передаётся как массив, содержащий объект по индексу 0 и имя метода по индексу 1. Доступ к закрытым и защищённым методам разрешён изнутри класса.

Статические методы класса также могут быть вызваны без создания экземпляра объекта класса путём передачи имени класса вместо объекта в элементе массива с индексом 0 или выполнения 'ClassName::methodName' .

Помимо обычных пользовательских функций, в качестве callback-функции можно передавать анонимные функции и стрелочные функции.

Замечание:

Начиная с PHP 8.1.0, у Callback-функций как объектов первого класса та же семантика, что и у этого метода.

Как правило, любой объект, реализующий __invoke(), также может быть передан в параметр callback.

Пример #1 Пример callback-функции

// Пример callback-функции
function my_callback_function () <
echo ‘Привет, мир!’ ;
>

// Пример callback-метода
class MyClass <
static function myCallbackMethod () <
echo ‘Привет, мир!’ ;
>
>

// Тип 1: Простой callback
call_user_func ( ‘my_callback_function’ );

// Тип 2: Вызов статического метода класса
call_user_func (array( ‘MyClass’ , ‘myCallbackMethod’ ));

// Тип 3: Вызов метода класса
$obj = new MyClass ();
call_user_func (array( $obj , ‘myCallbackMethod’ ));

// Тип 4: Вызов статического метода класса
call_user_func ( ‘MyClass::myCallbackMethod’ );

// Тип 5: Вызов относительного статического метода
class A <
public static function who () <
echo «A\n» ;
>
>

class B extends A <
public static function who () <
echo «B\n» ;
>
>

call_user_func (array( ‘B’ , ‘parent::who’ )); // A, устарело, начиная с PHP 8.2.0

// Тип 6: Объекты, реализующие __invoke, могут быть использованы как callback
class C <
public function __invoke ( $name ) <
echo ‘Привет ‘ , $name , «\n» ;
>
>

$c = new C ();
call_user_func ( $c , ‘PHP!’ );
?>

Пример #2 Пример callback-функции с использованием замыкания

<?php
// Наше замыкание
$double = function( $a ) <
return $a * 2 ;
>;

// Диапазон чисел
$numbers = range ( 1 , 5 );

// Использование замыкания в качестве callback-функции
// для удвоения каждого элемента в нашем диапазоне
$new_numbers = array_map ( $double , $numbers );

print implode ( ‘ ‘ , $new_numbers );
?>

Результат выполнения данного примера:

Замечание:

Callback-функции, зарегистрированные такими функциями как call_user_func() и call_user_func_array() , не будут вызваны при наличии не пойманного исключения, брошенного в предыдущей callback-функции.

User Contributed Notes 19 notes

You can also use the $this variable to specify a callback:

<?php
class MyClass <

public $property = ‘Hello World!’ ;

public function MyMethod ()
<
call_user_func (array( $this , ‘myCallbackMethod’ ));
>

public function MyCallbackMethod ()
<
echo $this -> property ;
>

A note on differences when calling callbacks as «variable functions» without the use of call_user_func() (e.g. » <?php $callback = ‘printf’ ; $callback ( ‘Hello World!’ ) ?> «):

— Using the name of a function as string has worked since at least 4.3.0
— Calling anonymous functions and invokable objects has worked since 5.3.0
— Using the array structure [$object, ‘method’] has worked since 5.4.0

Note, however, that the following are not supported when calling callbacks as variable functions, even though they are supported by call_user_func():

— Calling static class methods via strings such as ‘foo::doStuff’
— Calling parent method using the [$object, ‘parent::method’] array structure

All of these cases are correctly recognized as callbacks by the ‘callable’ type hint, however. Thus, the following code will produce an error «Fatal error: Call to undefined function foo::doStuff() in /tmp/code.php on line 4»:

<?php
class foo <
static function callIt (callable $callback ) <
$callback ();
>

static function doStuff () <
echo «Hello World!» ;
>
>

foo :: callIt ( ‘foo::doStuff’ );
?>

The code would work fine, if we replaced the ‘$callback()’ with ‘call_user_func($callback)’ or if we used the array [‘foo’, ‘doStuff’] as the callback instead.

When specifying a call back in array notation (ie. array($this, «myfunc») ) the method can be private if called from inside the class, but if you call it from outside you’ll get a warning:

class mc <
public function go (array $arr ) <
array_walk ( $arr , array( $this , «walkIt» ));
>

private function walkIt ( $val ) <
echo $val . «<br />» ;
>

public function export () <
return array( $this , ‘walkIt’ );
>
>

$data = array( 1 , 2 , 3 , 4 );

$m = new mc ;
$m -> go ( $data ); // valid

array_walk ( $data , $m -> export ()); // will generate warning

?>

Output:
1<br />2<br />3<br />4<br />
Warning: array_walk() expects parameter 2 to be a valid callback, cannot access private method mc::walkIt() in /in/tfh7f on line 22

You can use ‘self::methodName’ as a callable, but this is dangerous. Consider this example:

<?php
class Foo <
public static function doAwesomeThings () <
FunctionCaller :: callIt ( ‘self::someAwesomeMethod’ );
>

public static function someAwesomeMethod () <
// fantastic code goes here.
>
>

class FunctionCaller <
public static function callIt (callable $func ) <
call_user_func ( $func );
>
>

Foo :: doAwesomeThings ();
?>

This results in an error:
Warning: class ‘FunctionCaller’ does not have a method ‘someAwesomeMethod’.

For this reason you should always use the full class name:
<?php
FunctionCaller :: callIt ( ‘Foo::someAwesomeMethod’ );
?>

I believe this is because there is no way for FunctionCaller to know that the string ‘self’ at one point referred to to `Foo`.

> As of PHP 5.2.3, it is also possible to pass ‘ClassName::methodName’

You can also use ‘self::methodName’. This works in PHP 5.2.12 for me.

I needed a function that would determine the type of callable being passed, and, eventually,
normalized it to some extent. Here’s what I came up with:

/**
* The callable types and normalizations are given in the table below:
*
* Callable | Normalization | Type
* ———————————+———————————+—————
* function (. ) use (. ) <. >| function (. ) use (. ) <. >| ‘closure’
* $object | $object | ‘invocable’
* «function» | «function» | ‘function’
* «class::method» | [«class», «method»] | ‘static’
* [«class», «parent::method»] | [«parent of class», «method»] | ‘static’
* [«class», «self::method»] | [«class», «method»] | ‘static’
* [«class», «method»] | [«class», «method»] | ‘static’
* [$object, «parent::method»] | [$object, «parent::method»] | ‘object’
* [$object, «self::method»] | [$object, «method»] | ‘object’
* [$object, «method»] | [$object, «method»] | ‘object’
* ———————————+———————————+—————
* other callable | idem | ‘unknown’
* ———————————+———————————+—————
* not a callable | null | false
*
* If the «strict» parameter is set to true, additional checks are
* performed, in particular:
* — when a callable string of the form «class::method» or a callable array
* of the form [«class», «method»] is given, the method must be a static one,
* — when a callable array of the form [$object, «method»] is given, the
* method must be a non-static one.
*
*/
function callableType ( $callable , $strict = true , callable& $norm = null ) <
if (! is_callable ( $callable )) <
switch ( true ) <
case is_object ( $callable ):
$norm = $callable ;
return ‘Closure’ === get_class ( $callable ) ? ‘closure’ : ‘invocable’ ;
case is_string ( $callable ):
$m = null ;
if ( preg_match ( ‘

i’ , $callable , $m )) <
list( $left , $right ) = [ $m [ ‘class’ ], $m [ ‘method’ ]];
if (! $strict || (new \ ReflectionMethod ( $left , $right ))-> isStatic ()) <
$norm = [ $left , $right ];
return ‘static’ ;
>
> else <
$norm = $callable ;
return ‘function’ ;
>
break;
case is_array ( $callable ):
$m = null ;
if ( preg_match ( ‘

i’ , $callable [ 1 ], $m )) <
if ( is_string ( $callable [ 0 ])) <
if ( ‘parent’ === strtolower ( $m [ ‘reference’ ])) <
list( $left , $right ) = [ get_parent_class ( $callable [ 0 ]), $m [ ‘method’ ]];
> else <
list( $left , $right ) = [ $callable [ 0 ], $m [ ‘method’ ]];
>
if (! $strict || (new \ ReflectionMethod ( $left , $right ))-> isStatic ()) <
$norm = [ $left , $right ];
return ‘static’ ;
>
> else <
if ( ‘self’ === strtolower ( $m [ ‘reference’ ])) <
list( $left , $right ) = [ $callable [ 0 ], $m [ ‘method’ ]];
> else <
list( $left , $right ) = $callable ;
>
if (! $strict || !(new \ ReflectionMethod ( $left , $right ))-> isStatic ()) <
$norm = [ $left , $right ];
return ‘object’ ;
>
>
>
break;
>
$norm = $callable ;
return ‘unknown’ ;
>
$norm = null ;
return false ;
>